"What Our Gearhead® Experts Are Saying:""The Concurve Thermo Hybrid Jacket is the jacket I have been reaching for on every cool morning run this season because it strikes the balance between warmth and mobility better than anything else in my rotation. The thermal knit fabric keeps heat in without creating that suffocating, overheated feeling that heavier jackets can produce at pace, and the wind resistance on the frontal core and upper arms blocks the chill right where you feel it most on a headwind effort.""Cold mornings have a way of testing commitment before the run even starts, and the GOREWEAR Concurve Thermo Hybrid Jacket is the layer that makes heading out the door feel like an easy decision. The recycled thermal stretch fabric wraps the body in immediate warmth while remaining breathable enough to manage output as the pace climbs, and the shirt-like fit sits close without restricting the natural movement of a running stride. Wind resistance is applied strategically across the frontal core and upper arms, targeting the zones that take the most direct exposure on a headwind run while keeping the rest of the jacket light and flexible. The full 2-way VISLON front zipper gives precise ventilation control in either direction as body temperature changes through the effort, and two handwarmer pockets provide a warm place to stash hands at the start line or during a recovery walk. Two-tone reflective details extend the jacket's usefulness into the low-light hours that cool-weather running tends to occupy, and the hip length keeps the lower back covered through the full range of running motion."